JP2950952B2 - Scroll control device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scroll control device for scrolling a screen inside a window on which a graphic or the like is displayed.

[Prior Art] Drawings and designs using graphic functions have been conventionally used in computers and word processors.

In such computer graphics, a part (or all) of a working area, which is an entire image area in which a drawing or the like is performed, is set as a window in response to a dot image graphic or a request for enlarged display, and the window is set through the window. To display graphics etc.

Therefore, when observing another part of the image area through the window, scrolling in the window is performed.

The first conventional scrolling method is to provide, for example, a scroll bar having a frame that slides inside along each of the vertical and horizontal sides of the window, and to use a mouse or the like that works with a cursor that appears on the screen. There has been a method of performing scrolling by sliding the frame.

Further, in the second conventional scrolling method, scroll icons corresponding to up, down, left, and right directions are provided in the vicinity of a window, and the scroll icon is clicked with a mouse or the like to scroll one step at a time in accordance with the click. There was a formula.

[Problems to be Solved by the Invention] However, the above-described conventional scroll control method has a problem that it is difficult to perform scrolling according to the image of the operator.

That is, in the above-mentioned conventional first scroll control method, the moving amount of the sliding frame in the scroll bar does not match the scroll amount in the window on the screen. There was a problem that the scroll amount had to be obtained.

Further, in the above-mentioned conventional second scroll method, the scroll amount in one step is standardized, and a large number of clicks are required to obtain a desired scroll amount, which makes the scroll operation complicated. I was

Therefore, in the above-described conventional scroll control method, it is difficult to associate the scroll feeling of the operator with the scroll amount on the screen, and such a problem has hindered operations such as drawing.

In particular, when scrolling a screen on which a complex graphic or the like is formed by a dot image, it may be difficult to scroll the screen in real time with the movement of the mouse due to the processing time, For this reason, there has been a demand for a scroll control device which can easily and easily scroll the window after a desired scroll amount is set accurately and accurately.

The present invention has been made in view of the above-described conventional problems, and has as its object to be able to reliably grasp the scroll amount in a window via a scale and to accurately set the scroll amount. An object of the present invention is to provide a scroll control device.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a scroll control device for controlling scrolling of a screen in a window set on a display screen, wherein the scroll control device is provided along at least one side of the window. Scroll bar display means for displaying a scroll bar engraved with a scale, a cursor arbitrarily movable within the display screen is located within the scroll bar area, and a predetermined first execution input is obtained. Scroll mode determining means for determining a scroll mode; and, when the cursor is moved along the scroll bar in the scroll mode, a scale for scrolling the scale of the scroll bar in accordance with the movement of the cursor. Roll means, and when a predetermined second execution input is obtained in the scroll mode, Window scroll means for skip-scrolling the screen in the window in accordance with the scroll amount of the scale.

[Operation] According to the above configuration, scrolling of the screen in the window is performed as follows.

First, when the operator positions the cursor in the scroll bar area and performs a predetermined first execution input,
The scroll mode determining means determines the scroll mode.

When the scroll mode is entered, the scale of the scroll bar is scrolled by the scale scroll means along with the movement of the cursor.

Then, when a predetermined second execution input is obtained in the scroll mode, the screen in the window is scrolled by the window scroll means by skipping the screen by the same amount as the scroll amount of the scale.

Therefore, since the operator can reliably grasp the expected scroll amount in the window before the scroll in the window is actually performed, it is possible to perform the accurate scroll in the window as in the image. Becomes

EXAMPLES Hereinafter, preferred examples of the present invention will be described with reference to the drawings.

FIG. 1 shows a configuration of a scroll control device according to the present invention, and FIG. 2 shows an example of a display image formed by the scroll control device according to the present invention.

 First, a description will be given with reference to FIG.

In FIG. 2, a window 32 having an arbitrary size is set on a display screen 30 of the display. here,
As described above, this window 32 displays a part (or all) of the working area where drawing and the like are performed.

In the present embodiment, it is possible to perform graphic production or the like with a dot image via the window 32, and the dot unit on the display screen 30 is associated with the dot unit in the print output.

In the window 32, a scroll bar 34X having the same length as the upper side is set along the upper side. On the left side of the window 32, a scroll bar 34Y having the same length as the side is set along the side.

Each scroll bar 34 is engraved with a scale in the same dimensional unit as that in the window 32.

Here, the scale is marked in the same unit as the print output in the present embodiment. In particular,
It is in cm.

On the display screen 30, a cursor 36 that is freely moved by a mouse, a keyboard, or the like is displayed.

In order to indicate the coordinates of the cursor 36, a coordinate line 40X is displayed on the scroll bar 34X corresponding to the coordinates of the cursor 36 in the X direction. A coordinate line 40Y is displayed corresponding to the coordinates of the direction. Here, each coordinate line 40 performs a sliding operation in each scroll bar according to the movement of the cursor 36.

Next, the configuration of the scroll control device according to the present invention will be described with reference to FIG.

In FIG. 1, reference numeral 10 denotes a control unit for controlling scrolling, which comprises a CPU and the like.

The image memory 12 connected to the control unit 10 stores the entire working area where the above-described drawing and the like are performed, and the storage is stored as a dot image or a vector image.

Keyboard 14 and mouse 16 connected to control unit 10
Is for performing various inputs related to scroll control.
For example, it is used for moving the cursor 36.

Scale pattern memory 18 connected to the control unit 10
Stores the scale pattern of each of the scroll bars 34X and 34Y shown in FIG. That is, as shown in FIG.
The scale 50 in the scroll bar 34 is formed by connecting a plurality of the blocks 50.

The VRAM (video RAM) 20 connected to the control unit 10
One screen of image data displayed on the RT 22 is stored.

Therefore, according to such a configuration, the data corresponding to the window 32 is read from the image memory 12 and the scale pattern block 50 is read from the scale pattern memory 18 according to a predetermined command from the control unit 10. The screen to be displayed is formed by the control unit 10,
After the formed image is stored in VRAM20, it is read and
Will be displayed on CRT22.

When the scroll bar 34 is scrolled later, the control unit 10 rewrites the data corresponding to the scroll bar in the VRAM 20.When the window 32 is scrolled later, the control unit 10 rewrites the data to the window 32 in the VRAM 20. The corresponding data will be sequentially rewritten.

Further, the control unit 10 constantly monitors the movement operation of the mouse 16, and moves the display of the cursor 36 in accordance with the operation.

Next, the operation of the scroll control device according to the present invention will be described with reference to FIGS. 5 and 6, and the specific steps of the scroll control will be described with reference to FIGS. 3 and 4.

FIG. 5A shows an initial screen before scrolling. In this state, after creating a figure or the like, Y
The case of scrolling in the direction is described below.

First, as shown in FIG. 5 (B), the operator positions the cursor 36 in the area of the scroll bar 34Y, and performs a predetermined first execution input in that state. Here, the first execution input is a click of the mouse 16 or a keyboard 14
This is the execution instruction from. At this time, the control unit 10 determines whether or not the area is within the area, and together with the first execution input,
Set scroll mode.

In the figure, in order to express the scroll in the scroll bar 34Y, a portion of the scroll bar 34Y in a state before the scrolling (B) is indicated by oblique lines.

When entering the scroll mode, the control unit 10
Is scrolled by the same distance on the scale of the scroll bar 34Y with the movement in the Y direction. This state is shown in FIG.
Is shown in Note that the operator uses this scroll bar
It is possible to easily confirm the scroll amount of 34Y sequentially by scale.

When the desired scroll amount is set, the operator performs a predetermined second execution input.

The second execution input is performed, for example, by clicking the mouse 16 or by a predetermined input from the keyboard 14, similarly to the first execution input.

When the second execution input is obtained, the control unit 10
As shown in FIG. 13D, the screen in the window 32 is skip-scrolled in the Y direction by the same scroll amount as the scroll amount of the scale of the scroll bar 34Y.

FIG. 6 shows an image of the upper left portion of the window 32 on the display screen 30, and FIG. 6 (A) shows a screen before scrolling the scale of the scroll bar 34Y. (B) shows the screen after scrolling the scale of the scroll bar 34Y.

As understood from FIG. 6, when the cursor 36 is moved in the Y direction in the scroll mode, the scale formed on the scroll bar scrolls sequentially.

Therefore, since the scroll amount can be grasped in the same unit as the dimensional unit in the window 32, there is an advantage that the scroll can be surely performed.

In the above description, scrolling in the Y direction has been described, but the same applies to the X direction.

Next, specific steps of scroll control will be described with reference to FIGS. 3 and 4. FIG. Here, FIG. 3 shows the entire process, and FIG. 4 shows each process after entering the scroll processing routine.

In FIG. 3, in step 101, it is confirmed whether or not the first execution input has been made. Then, in step 102, when the first execution input is obtained, the processing shifts to step 103. On the other hand, when the first execution input is not obtained, the processing returns to step 101 again.

In step 103 and step 104, the cursor
It is determined whether the position of 36 is within the area of the scroll 34X or the area of the scroll bar 34Y.

If it is determined that the cursor is not positioned within the area of each scroll bar, in step 105, other processing such as, for example, figure formation is performed.

In step 103, the position of the cursor 36 is changed to the scroll bar 34X.
If it is determined that the area is within the area, the process proceeds to step 106, and the X scroll processing routine is executed. If it is determined in step 104 that the position of the cursor 36 is within the area of the scroll bar 34Y, the process proceeds to step 107, where Y
A scroll processing routine is executed.

Here, since the same processing is performed in the X and Y scroll processing routines, specific steps thereof are collectively illustrated in FIG.

In FIG. 4, first, in step 201, the mouse 36
Is stored as an absolute initial value S1 and a relative initial value S2, respectively.

Next, in step 202, it is confirmed whether or not a second execution input has been made.

Then, if it is determined in step 203 that the second execution input has not been obtained, the process proceeds to step 204.

In step 204, the current mouse position P is subtracted from the relative initial value S2 stored in step 201 to obtain the amount of mouse movement D.

In step 205, it is determined whether or not the obtained moving amount D is 0. If the moving amount D is 0, the process proceeds to step 202.
Return to

In step 206, it is determined whether or not the obtained movement amount D is within a range in which scroll processing can be performed.

That is, the window 36 can be set in the working area described above, and in this step 206, it is determined whether or not the cursor movement amount D has exceeded the scroll limit.

If the movement amount D of the cursor exceeds the limit, scrolling cannot be performed any more, so the movement amount D is fixed to the limit value, and the process proceeds to step 202.

Next, in step 207, the scroll bar 34 performs scale scrolling based on the obtained movement amount D of the cursor. Then, in step 208, the current cursor position P is stored in the relative initial value S2.

It should be noted that the processing of steps 202 to 208 described above is performed almost in real time, so that the scroll bar 34 can be scrolled by following the movement of the cursor 36.

When it is determined in step 203 that the second execution input has been obtained, the process proceeds to step 209. This step 209
Then, the calculated relative initial value S2 is subtracted from the absolute initial value S1, the scroll amount in the window is determined, and the window 32 is scrolled according to the scroll amount.

Then, when the scroll in the window 32 is performed,
Returning to step 101 shown in FIG. 3, the above steps are repeated.

As described above, first, after scrolling the scroll bar 34 and setting the scroll amount of the window 32,
Since you can scroll within window 32,
It is possible to perform reliable and accurate scrolling without failure.

In particular, when a complicated graphic or the like in a window is formed by a dot image and a scroll processing time is relatively long, such accurate scrolling makes the time of graphic work more efficient than in the past. It is possible.

In the above description, scroll bars are provided on one side in each of the vertical and horizontal directions of the window 36. However, scroll bars may be provided on both sides, and in this case, a smoother scroll operation can be performed.

[Effects of the Invention] As described above, according to the scroll control device of the present invention, it is possible to scroll the window after setting the scroll amount while checking the scale formed on the scroll bar. , Scrolling can be performed accurately and reliably.

In particular, when the screen change speed in the window is relatively slow, the effect is further enhanced, and for example, work in computer graphics or the like can be performed smoothly.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a scroll control device according to the present invention, FIG. 2 is an explanatory diagram showing an example of a display screen, FIG. 3 is a flowchart showing scroll control, and FIG. FIG. 5 is a flow chart, FIG. 5 is an explanatory view showing an example of a display screen related to scroll control, FIG. 6 is a partially enlarged view of the display screen, and FIG. 7 is an explanatory view showing a scale pattern.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G09G 5/34

Claims (1)

(57) [Claims] 1. A scroll control device for controlling scrolling of a screen in a window set on a display screen, comprising: a scroll bar display means for displaying a scaled scroll bar along at least one side of the window; Scroll mode determining means for determining a scroll mode when a cursor which can be arbitrarily moved within the display screen is located within the scroll bar area and a predetermined first execution input is obtained; When the cursor is moved along the scroll bar in the scroll mode, scale scroll means for scrolling the scale of the scroll bar in accordance with the movement of the cursor; and a predetermined second execution input in the scroll mode. When it is obtained, the win A scroll control device comprising: a window scroll means for skip-scrolling a screen in a dough.